English verb conjugation
COULD FOIST

Regular verb: foist - foisted - foisted

Affirmation

Simple form	V-ing form
I could foist you could foist he could foist we could foist you could foist they could foist	I could be foisting you could be foisting he could be foisting we could be foisting you could be foisting they could be foisting
Perfect	V-ing perfect
I could have foisted you could have foisted he could have foisted we could have foisted you could have foisted they could have foisted	I could have been foisting you could have been foisting he could have been foisting we could have been foisting you could have been foisting they could have been foisting

Negation

Simple form	V-ing form
I could not foist you could not foist he could not foist we could not foist you could not foist they could not foist	I could not be foisting you could not be foisting he could not be foisting we could not be foisting you could not be foisting they could not be foisting
Perfect	V-ing perfect
I could not have foisted you could not have foisted he could not have foisted we could not have foisted you could not have foisted they could not have foisted	I could not have been foisting you could not have been foisting he could not have been foisting we could not have been foisting you could not have been foisting they could not have been foisting

Interrogative form

Simple form	V-ing form
could I foist? could you foist? could he foist? could we foist? could you foist? could they foist?	could I be foisting? could you be foisting? could he be foisting? could we be foisting? could you be foisting? could they be foisting?
Perfect	V-ing perfect
could I have foisted? could you have foisted? could he have foisted? could we have foisted? could you have foisted? could they have foisted?	could I have been foisting? could you have been foisting? could he have been foisting? could we have been foisting? could you have been foisting? could they have been foisting?

Interro-negative form

Simple form	V-ing form
could I not foist? could you not foist? could he not foist? could we not foist? could you not foist? could they not foist?	could I not be foisting? could you not be foisting? could he not be foisting? could we not be foisting? could you not be foisting? could they not be foisting?
Perfect	V-ing perfect
could I not have foisted? could you not have foisted? could he not have foisted? could we not have foisted? could you not have foisted? could they not have foisted?	could I not have been foisting? could you not have been foisting? could he not have been foisting? could we not have been foisting? could you not have been foisting? could they not have been foisting?